images from heat sensing technology showed he was hiding in a boat in a backyard in watertown. after a shootout with police, tsarnaev climbed out. investigators tell cbs news he had bullet wounds to his leg and neck and may have tried to kill himself. his older brother, tamerlan, the second suspect died early friday after another fire fight with police. in 2011, the fbi interviewed tamerlan when the russian government flagged him as a follower of radical islam. tamerlan changed over the years. >> it was different. seeing no purpose in life, but to pursue path of god. >> the people here in massachusetts have been rallying around the victims all week. well wishers have come to this memorial in downtown boston to leave momentos. >> it will make the community stronger and closer. >> many here are glad this week is over so life can get back to normal. official charges have yet to be filed. the most serious charge he could get is for using a weapon of mass destruction to kill. and that carries a possible death sentence. live in boston, adrianna diaz. >> what's it like there tonight?